package facade;

/**
 * @Author liangliangzhao
 * @data 2023/4/14 11:24
 */

public class Projector {
    private static Projector instance = new Projector();

    public static Projector getInstance(){
        return instance;
    }

    public void on(){
        System.out.println(" Projector on ");
    }

    public void off(){
        System.out.println(" Projector off ");
    }
    public void Projector(){
        System.out.println(" Projector is Projector ");
    }
}
